Salisburylander · May 14, 2018

My colleague has had his TD5 chipped and has had a vaiable vane turbo fitted. When he accelerates, thick black smoke pours out of the exhaust.

Is that going to be a problem with the new MoT?

bankz5152 · May 14, 2018

Shouldnt be unles it smokes from standstill. Afaik the mot is engine idle smoke, not revving or underload

lynall · May 14, 2018

Black smoke = a bad tune

Paul D · May 14, 2018

Yes it's a problem, so it's now very very undervalued and worth next to nothing ....

Tell you what, I'll give him £50 sight unseen for it ... and I'm cuttin' me own froat at that!

Mind, he'd have to deliver it to Doncaster for that too ...

bankz5152 · May 14, 2018

lynall said:
Black smoke = a bad tune

Not really. Usually an imbalance of fuel and air. Highly tuned diesels wil almost always smoke. Depends when it smokes really

lynall · May 14, 2018

bankz5152 said:
Not really. Usually an imbalance of fuel and air. Highly tuned diesels wil almost always smoke. Depends when it smokes really

Imbalance = bad tune
Ive always liked diesals, what I hate is black smoke as its not needed on anything remotely modern.
Plus people might see a smokey car and it might come up in conversation but car make unknown, but everyone knows what a land rover looks like and it gives the whole lot a bad name.

300bhp/ton · May 14, 2018

No harm in a bit of smoke.

bankz5152 · May 14, 2018

Dumping smoke at every point in the rev range id tend to agree, most likely a poor tune. However smoke at standstill when revving or when labouring not so much as the turbo isnt feeding it enough air, soon as the boost picks up smokes gone.

Muppetdaze · May 17, 2018

Any smoke is going to class as a major fault and a fail

lynall · May 17, 2018

bankz5152 said:
Dumping smoke at every point in the rev range id tend to agree, most likely a poor tune. However smoke at standstill when revving or when labouring not so much as the turbo isnt feeding it enough air, soon as the boost picks up smokes gone.

Smoke when labouring maybe okay as mot guy wont see that but smoke at a standstill on any modern ish diesel (ie post tdi) has got to be either a mechanical fault or a pants tune.

lynall · May 17, 2018

Muppetdaze said:
Any smoke is going to class as a major fault and a fail

Going to be fun with the tweaked tdis then

Muppetdaze · May 18, 2018

Easy, fill em with redex and drive it like a hire car for the half hour before the test.
Thrash it like a stereotypical Eton schoolmaster.

bankz5152 · May 18, 2018

lynall said:
Smoke when labouring maybe okay as mot guy wont see that but smoke at a standstill on any modern ish diesel (ie post tdi) has got to be either a mechanical fault or a pants tune.

Agreed.

lynall · May 18, 2018

Muppetdaze said:
Easy, fill em with redex and drive it like a hire car for the half hour before the test.
Thrash it like a stereotypical Eton schoolmaster.

I drive both my tdis like that all the time and they still chuff!
One totally std and the other slightly messed with, neither is fast in normal car terms.

Salisburylander

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Paul D

Old, nackered 'n broke, but the Landy is fine . :)

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300bhp/ton

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Muppetdaze

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